Carriage-shifting mechanism for type-writers.



N0. 883;753. PATENTED APR. 7, 190s.

0. W. .SPONSEL. 4 CARRIAGE SHIPTING MECHANISM FOR TYPE WRITERS.

APPLICATION FILED AUG.18,1905.

WITNESSES: I INVENTOR ATTORNEYS describe which Wlll .be indicated in the following groups.

UNITED STATES PATENT OFFICE.

CHARLES W. SPONSEL, OF HARTFORD, CONNECTICUT, ASSIGNOR TO PARKER MACHINE COMPANY, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

CARBIAGE-SHIFTIN MECHANISM FOR TYPE-WRITERS.

Specification of Letters Patent.

Patented. April 7, 1908.

Application filed August 18, 1605. Serial No. 274,651.

T 0 all whom it may concern: 7

Be it known that 1, CHARLES W. SPoNsEL, residing at Hartford, in the county of; Hart' ford and State of Connecticut, have invented certain new and i useful Improvements in Carriage-Shifting Mechanism for Type- Writers, of which the following is a full, clear, and exact descri tion, such as will en able others skilled in tile art to which it appertains to make and use the same.

This invention relates to typewriters and the like, and, while the same is capable of employment in many different forms of ma chines it is especially adapted for use in con nection with those known as silent; typewriters, and has for one of its objects the provision of'mechanism whereby the machine will operate without noise. Another object is to provide mechanism which will shift the carriage silently from initial position to other positions.

Other objects'will be in art obvious and in part pointed out hereina ter. he invention accordingly consists inthe features of construction, combinations of elements and arrangement of parts which will be exem lified in the mechanism hereinafter and the scope of the application of claims.

The drawing represents an elevation,

partly broken away, of one of the various possible embodiments of my invention. I I As tending. to render better understo'od certain of the various general features of my invention, it may here be noted thatin typewriters having a small number of keys, wherein-the prlnting characters are arranged in several groups, it-is necessaryto provide a'shifting device for the carriage. I have therefore found it-desirable in silent typewriters to provide-a device such that the carriage may be shifted silently from initial position to other positions in order to em loyza printing character from any one o sald The above and other advantages are secured inconstruct'ions of the nature ofthat hereinafter described.

Referring now to the drawing, the carriage 1 is mounted to reciprocate vertically in uides 2 positioned upon bar 3 carried m the ratios of the machine. Spring 4 secured to bracket 5 positioned upon rod 6 extend- 'roller is adapted to rest. by thisoperation, be shifted in the guides 2 from initial position to a second posltion bying between the guides 2 is adapted'to exerta pressure on carriage 1 at 7 and thereby maintain the same in its .upward position.

The lever 8 is by means of rod 9 adapted to o erate a pawl and ratchet mechanism, not

lever 11 is provided with rollers 16 and 17 carried byarms 18 and 19 respectively of said lever 14. By reason of arm 19 being of greater length than arm- 18, the roller 17 when the lever 14 is turned on its pivot describes a larger arc-than roller 16 mounted upon arm 18, the purpose of 'Whichwill be apparent hereinaften ROCK; shaft 20 connected to the shift levers carries an arm 21 to which is pivoted a link 22, said link being also pivoted to lever14 at 23'. Cam24 fixedly secured to the'franie of the machine,

is provided with a cam groove 25, said groove having therein a sli ht dwell 26 and is adapt ed to receive the rollers 16 and 17 of lever 14.

In the drawing, the carriage is shown in'its upper or initial position, and in the operation 0 my invention which after the above description should be to a large extent obvious, when it is desired to shift the same from initialposition, a rotation of rock shaft 20 by the proper shift lever will com el arm 21 and link 22 to swing lever 14 int e direction of the arrow and cause roller 17 to move in the cam groove 25to the position shown in the dotted lines of the drawing, the extent of the movement thereof being determined by the dwell 26 in said cam groove 25 wherein said The carriage will,

reason-of the channel bar-9 being connected through block 10 to lever 1 by means of lever 11 as above explained. In shifting the carriage from initial osition or from the sec-j 0nd osition to a t ird pgsition, a further rotation of the rock shaft 20 by another shiftlever will cause the lever 14 to disengage roller 17 from said cam oove 25, and simultaneously-engage therein roller 16 mounted on short arm 18 and move the same to the position shown'in the dotted lines, the extent f2: assess of thismovement beingalso determined by the engagementof roller 16 in dwell 26. The

carriage is now in its third position, and when the pressure on either of the shift levers is removed, spring 4 will return the said carriage to its initial position. By reason of the carriage and the shifting devices being in constant engagement with each other, impact or concussion of moving parts is prevented.

In order to facilitate themovernent of rollers 16and 17 in cam 24 and also to reduce to a minimum the wear resulting from friction, I have found it desirable to harden the surfaces of cam roove 25, and I preferably employ hardened steel rollers in the relation shown, but it should be apparent that the rollers themselves may be omitted and ivotally mounted blocks substituted in t eir stead. l

It may here be noted that, while I have mentioned the usual shift levers in the rela-.

tion of actuating means for rock shaft 20,

the same are not herein shown, as they, of

- present invention. It will be apparent also,

that while in the illustrative embodiment shown I have pivotally mounted lever 14, I can arrange the same ina fixed relation with respect to the carriage and pivotally mount cam 24 connecting the same with the shift levers, Without departing inany way.from the spirit of m invention and, obviously, a departure wou d not be effected by the rovision of a carriage fixed against vertica 're.

ciprocation with the further provision of vertically reciprocating printing devices, the

same com rising the t *pe basket. 7

It will t us be seen t at I have constructed a device characterized by 'sim licity and efficiency, wherein the objects 0 .I'ny lnvention are accomplished as the several parts. operate to accomplish the shifting of the car riage without the disagreeable noise produced in machines of other types.

While I have shown my invention as a a plied to a machine of the above type, I o

not, however, intend to limit its application exclusively to machines of such type, it being adapted as to many of its features to other forms of typewriters although primarily of great value in the relation herein shown;

- As many changes could .be made in the above construction andv many apparently widely different embodiments of m invention could be made without departing from the scope thereof, I intend thatall matter contained in the above description or shown in the accompanying drawings shall pe inter- 'preted as illustrative and not in a'limiting sense.

Having described my invention, what I claim as'new and desire to secure by Letters Patent.is:- I

1. Ina typewriting machine, in combination, a carriage, a fixed cam, and means connected with the carriage andoperatin' upon said camadapted by a movement t ereof/ relative to the carriage to shift said carriage,

from initial position to another position.

2. In a typewriting machine, in combination, a carriage, a fixed cam, means ,connected with the carriage and operating u on said cam adapted by a movement thereof relative to the carriage-to shift 151163811116 from initial position to another position, and means for automatically determining such position.

3. In a typewriting machine, in combination, a carriage, a fixed earn, a swinging'lever, pivotally connected at one end with said carriage, the other end bein adapted. to operate upon said cam, said lever being ada ted by a move ent thereof relative to sai carriage to shif the same from initial position to another position, and means for determining such position.

4. In a typewrlting machine, in combination,- a carriage, a cam, means connected with the carriage and operating upon said cam, and means for causing a relative movement of said'first-mentioired means with res ect to the carriage and simultaneously t erewith a movement thereof with the car riage, such movement being compelled by an operation upon said cam.

5. In a typewriting machine, in combination, a carriage, a fixed cam, means connected with the carriage and operating upon said cam, and means for causing a relative movement of said first-mentioned means with re spect to the carriage and simultaneously t erewith a mo'vement'thereof with said carriage, suchmovement being compelled by an operation upon said cam.

6. In a typewriting machine, in combination, a carriage, a fixed cam, a swinging lever pivotally connected at one end with the carriage, the other end of which is adapted to operate upon said fixed cam, means for causing a relative movement of said lever with res set to the carriage and -simultaneously tlierewith and movement thereof with said carriage, such movement being compelled by anoperation upon said cam.

7.. In a typewriting machine, in combination, a carriage, a fixed cam, means connect- ,ed with the carriage andoperating upon said fixed cam adapted by a movement thereof relative to the carriage to shift the same from initial position to a second position, and other means connected with the carriage and operating upon fixed cam adapted by amovement relative to said carriage to shift the same to a third position.

8. In a typewritmg machine, n1 combination, a carriage, a fixed cam, means connect ed with the carriage and operating upon sa d fixed cam adaptedby a movement thereof relative to said carriage to shift the same from initial position to a second osition other means connected with the carriage operating u on said fixed cam adapted by a movementt ereof relative tosaid carriage to shift the same to a third position, and means for determming the position ofthe carriage.

therewitha rnovernentvwith the same, such last-mentioned movement bein also compelled-by an operation upon sai fixed cam.

10 In a typewritin machine, in combination, a carria e, a ed cam, a swinging donble-armed ever pivotally connected with the carriage, one arm of said lever being adapted to o era'te upon said cam, means for causing a re ative movement of said lever with respect to said carriage and simultaneonsly' therewith with said carriage, such movement being compelled by an operation upon said cam, said.means being also adapted to move the other arm of said lever ,upon

said cam relative to said carriage, such lastnamed movement, being compelled by an operation u on said cam, and means for determining t e extent of each of the movements of the arms of said lever. v

1 1., In a typewritingmachine, in combination, a carriage, sliding means ositioned therein, fixed, means provided with a cam groove, and means connected with-the sliding means in the carria e and operating in said cam groove adapts to shift the carriage.

12. In a typewriting machine, incombination, a carriage, a fixed cam provided with a cam groove, said cam groove having a dwell I therein, means sliding in said carriage, and

means connected with said sliding means and operating in said 'roove adapted by amovement thereof to shift the carriage to one pos'itionjsuch osition being determined by the dwell in said cam groove.

13. In a typewriting machine, in combination with the carriage, a channel-bar carried thereby, fixed means provided with a groove, means operating in said groove and connected with the channel-bar whereby a movement thereof will cause a movement of the channel-bar and. thereby shift the carriage.

14. In a typewriting machine,- in combina: tion with the carriage, a channel-bar carried thereby, a fixed cam provided with a groove,

and means 0 rating insaid groove and connected with t echannel-bar whereby a movement thereotwill cause a movement of the channel-bar and thereby shift the carriage. 15. In a typewriting machine, in combination with the carriage, a channel-bar carried thereby, means adapted to slide in said channel-bar, means provided with a groove,

means slidinginsaid oove and connected with the means in saic channel-bar adapted to cause a movement of said channel-bar to shift the carriage.

16. In a typewriting machine, in combination with the carriage, a channel-barcarried thereby, means ada ted to slide therein, fixed means provide with a groove, means 0 crating in said roove and connected with t e means in the o annel-bar and adapted to I cause a movement of said channel-bar to shift the carriage.

17 In a typewriting machine, in combination with the carriage, a channel-bar carried thereby, means positioned in said channelbar'and adapted to slide therein, fixed meansprovided with a cam groove, means operating therein, means adapted to cause a movement 'of' said last-mentionedmeans in said cam groove,'and a connection between the means in the cam groove and the means in the channel-bar whereby a movement of the former will cause a movement'of the latter in said channel-bar and thereby shift the carriage.

.18. In a typewriting machine,incombina- 9-5 tion with the carriage, a channel-bar, a fixed cam having a cam groove therein, means operating in said groove and means adapted to connect said last-mentioned means with the means in the channel-bar whereby a movement' of the means in the cam groove will cause a movement of the channel-bar and thereby shift the carriage.

19. In a typewriting machine, in combination with the carriage, a channel-bar, means sliding therein, a fixed cam provided with a groove, a lever, means carried by the lever adapted to operate in said groove, a connection between said lever and the means in the channel-bar whereby a movement of the means in said oovewill cause a movement of the channelar' to shift the carriage.

20. In a typewriti-ng machine, in c mbination with the carriage, a channel-bar carried A thereby, means sliding in said channel-bar, a fixed cam provided with a groove, a lever, means carried by the lever adapted to operate in said groove, means for operating said lever, and a connection between said lever and the means in said channel-bar whereby a movement of the means in said roove will cause a movement of the channelar.

21. In a typewriting machine, incombination with the carriage, a channel-bar, means I adapted to slide in said ohannel-bar, a lever pivoted to said means and also pivoted to a fixed part of the machine, a fixed cam provided with a cam groove, and movable means vided with a cam. roove, a lever enga ing the first mentioned ever, means on sa (1 ast mentioned lever adapted to operate said cam groove, and'means for operating said last mentioned lever to cause a movemfent of the means in the channel-bar and thereby shift the carriage. v

23. In a typewriting, machine, incombination,' a carriage, a channel-bar carrie thereby, a block located in said channel-bar,- ale ver (pivoted to said block also pivoted to' a fixe part of the machine, a fixed cam pro-' vided with a cam groove, a member operating .in said cam groove andengaging said lever adapted when moved in said roo've to cause sa1d lever to move the channe bair and thereby shift the carriage, and means for gr movin said member.

24. n a typewriting machine, in combination with the carriage -thereof, a fixed cam provided with a groove, said groove having a dwell therein, and a member 0 crating in said groove and connected with t ecarriage adapted by a movement in said groove to shift the carriage, the osition thereof being determined by the dwdll in said groove.

25. In a typewriting machine, in combination with the carriage thereof, a fixed cam rovided with a cam groove, said oove havmg a dwell therein, and a mem er 0 erating in said groove and connected wit the carriage and'adapted by a movement in said cam groove'to shlft the carriage, the position .of said carriage being determined by' the dwell in said groove.

26. In a typewritmg machine, in combina- 'tion, a carriage, means provided with a groove, means connected to the carriage adapted to operate in said groove to shift the carriage. to one position and other means also connected to said ca, riage and operating in said groove and adapted to shift the carriage to another positio f 27. In a typewritin-g machine, in combination, a carriage, a fixed cam provided with a cam groove, means connected with the carriage and adapted to operate in said cam groove to shift the carriage to one position,

and other means also connected to said car riage and o 'erati'ng in said cam groove adapted toshift t e carriage to a different position.

28. In a typewriting'machine, in combination, a carriage; a fixed, cam providedwith a cam groove, interposed means connected with the carriage and operating in the cam -ti n, a carriage, a channel-bar carried therebyjyablook adapted to slide in said channelgroove adapted by a movement thereof to.

shift the carriageto one position, and other meansalso operatively connected withthe carriage and operating in said cam groove adapted by a movement thereof to shift the carnage to another" position. A

29. In a typewritmg' machine, in combination, a carriage, a channel-bar carried thereby, a block sliding in said channel-bar, means EIVOtGd to said block and also pivoted to'a' xed part of the machine, a cam providedwith a cam groove, means connected with the first nam (1 means and operating-in said cam groove aid adapted to shift the carriage, and other means connected with said first named means adapted to operate in said cam groove to shift the carriage to another position.

30. In a typewritmg machine, in combinabar, a lever pivoted at one end to said block and at its op" osite end to a fixed part of the machine, a ed cam-provided with a cam roove, a lever pivoted to the first mentioned ever and adapted to operate in the cam oove to shift the carriage to one position, and another lever also pivotally connected to said first mentioned lever and adapted to operate in said cam 'roove whereby the carriage may be shifte to a second position.

31. In a typewriting machine, m combina- 'tion, a carriage, a channel-bar carried thereby, a block adapted tov slide in said channelbar, a lever pivoted at one end to said block and at the opposite 'end to a fixed partof the machine, a cam provided with a cam groove, a lever pivoted to the first named lever intermediate its ends and ada ted to operate in the cam groove to shift t ecarriage to one 5 position, and another lever also pivotally connected to first mentioned lever mtermee diate" its ends and adapted to operate in said cam groove whereby the carriage is shifted to a second position.

32. In a typewriting machine, in combination, a carriage, a fixed cam rovided with a cam groove, a'double-armed ever connected tothe carria e, means carried by one arm of said lever adapted to operate in said cam 115 groove to shift the carriage to one position, means in thecam groove adapted to determine such position, and means carried by the other arm of said lever adapted also to operate in said cam groove to shift the carriage to 20 another position.

termine the position of said carriage after movement, and means carried ,by the other arm of said lever and also operating in said cam groove to shift the carriage to another position, the means in said cam groove also operating to determine the position of the carriage after the last-mentionedmovement.

34. In a typdwriting machine, in combina tion, a carriage, means provided with a groove, said groove having a dwell therein, means connected with the-carriage and operating in sald groove adapted to shift the carriage determined by said dwell, and other-means also connected with the carriage and operating in said groove to shift the carriage to anotherposition.

36, In a typewriting machine, in combination, a carriage, a fixed cam provided with a cam groove, said cam groove having a dwell therein, means connected with the carriage and operating in said cam groove adapted to shift'the carriage to one osition, such position being determined By said dwell, and other means also connected with the carriage and operating in 'said' cam groove to shift the carriage to another position, said dwell also operating to determine the position of' the carriage'in said last shifted position.

37. In a typewriting machine, in combination, a carria e, a channel-bar secured thereto, means sli 'ng in said channel bar, a lever pivoted to said means and also to a fixed part of the machine, a fixed cam provided oove, means connected with with a cam said lever an operating in said cam groove adapted by a movement thereof in said groove to shift the earring? to one position, said groove having a dwe therein adapted to determine the positionof the carriage after movement, and other means also connected with said lever and operating in said cam groove to shift the carriage to another position, said dwell also operating to determine the position of the carriage upon the. completion of the last-mentioned movement.

38. In a typewriting machine, in combination, a carriage, a channel bar secured there= to, a blockadapted to slide in said channel bar, a lever pivoted to said block and also pivoted to a fixed part'ofthemachine, a fixed cam provided with a camgroove, a

.of said arm.

lever havir]; arms of unequal length, means on one arm of said lever adapted to operate in said groove to shift the carriage from the initial position to a second position, and means carried by the shorter arm of said lever also operating in said cam. groove to shift said carriage to a third position.

39. In a typewriting machine, in combination, a carriage, a channel bar secured. thereto, means sliding in said channel bar, a lever connected with said means and also with a fixed part of the machine, a fixed cam provided with a cam groove, a lever pivoted to said first-mentioned lever and having arms of unequal length, means carried by the longer of said arms adapted to operate in said cam groove to swin the first-mentioned lever on its pivot an thereby shift the carriage from its initial position to a second. position, and means carried by the shorter arm of said second-mentioned lever adapted to operate in said cam groove to efi'ect a further swinging of said first-mentioned lever on its pivot to shift the carriage to a third position.

40. In a typewriting machine, in combination, a vertically reciprocated carriage, a channel bar secured thereto, a block adapted to slide in said channel bar, a lever pivoted to said block and also pivoted to a fixed part of the machine, a lever having arms of unequal length pivoted to said first-mentioned lever, fixed means provided with a cam groove, said cam roove having a dwell there- 1n, means on the onger of said arms adapted to operate in said cam groove and through theniediu'm of said first-mentioned lever and block to shift the carriage fromv the initial position to a second position, such. second position being determined hy the dwell in said cam groove, means-on the shorter of said second-mentioned levers adapted to o erate insaidcam groove and operating t rough the medium of said. first-mentioned lever and block to shift the carriage from the second position to a third position, such third position being also determined by the dwell in said cam groove, a rock shaft, an arm mounted upon said: reel; shaft, and a link pivoted to said arm and pivoted to said second-mentioned lever, said. link 1 being adapted to cause a movement oi? said second-mentioned lever through the medium In testimony whereof I ailix my signature 1n the presence ofitwo witnesses.

. C. W. SPONSEL.

Witnesses: W. H. Homes,

"NELLIE PHOENIX.

lid 

